Threats Tagged 'pyarmor obfuscation'

Vanta Stealer is a Python-based information stealer utilizing PyArmor protection and PyInstaller packaging to complicate defensive analysis. The malware systematically harvests credentials from Chromium-based browsers, communication platforms like Discord and Telegram, gaming applications including Steam, Riot Games, Roblox and Minecraft, cryptocurrency wallets, Mullvad VPN configurations, and sensitive documents. It performs token enrichment by validating stolen Discord credentials against the API to retrieve account details, billing information, Nitro status, and server privileges. The modular architecture downloads dedicated browser extraction utilities at runtime, maintains independence between collection modules, and generates structured inventory reports before consolidating harvested data into ZIP archives. Exfiltration occurs via HTTP POST to attacker-controlled infrastructure with victim metadata. Distribution likely occurs through social engineering campaigns involving phishing emails, trojanized...

Kaspersky uncovered a sophisticated phishing campaign by the APT group Armored Likho, deploying a previously undocumented Python-based infostealer dubbed BusySnake Stealer. The campaign targets government agencies and electric power sectors across Russia, Brazil, and Kazakhstan through spear-phishing emails containing malicious EXE or LNK attachments. BusySnake Stealer features advanced obfuscation using PyArmor Pro, extracts credentials from browsers using DPAPI and NSS libraries, captures screenshots, logs keystrokes, scrapes cryptocurrency wallets and 2FA tokens, and establishes reverse SSH tunnels for remote access. The threat actor leverages AI-generated code for first-stage payloads and distributes components via GitHub repositories. The stealer maintains persistence through scheduled tasks and communicates with C2 infrastructure to receive commands dynamically, representing a significant evolution in the group's technical capabilities.

MediumMalwareBrazilKazakhstanRussia#busysnake stealer#pyarmor obfuscation#credential theft